Research >> 2. Urban Environment >>Improvement of the urban thermal environment in an urban canyon


■ Improvement of the Urban Thermal Environment in an Urban Canyon


□ Research about the Improvement of the Urban Thermal Environment in an Urban Canyon

The first purpose of this study is to investigate thermal environment of a main street in Osaka by intensive measurement in the summer of 2006. Osaka is the second largest city and suffers from the most severe heat island in Japan. The second purpose is to propose several fundamental renovations and a composite renovation for improving the thermal environment in the canyon and to verify the effect of the proposals by CFD simulation. It was found that modifications in the building height along the street and ground surface materials, and increase of quantity of green can improve thermal environment to decreasing SET* by 2.0K in maximum.



Figure-1 Scene of Measurement 1

Figure-2 Scene of Measurement 2



Figure-3 Scene of Measurement 3

Figure-4 Scene of Measurement 4



Figure-5 Bird's eye view of the simulation model

Figure-6 Result of simulation (plan)